package server

import (
	"context"
	"net/http"
	"strings"
	"testing"

	"git.kingecg.top/kingecg/gohttpd/model"
)

func Test_Route_Match(t *testing.T) {
	// 创建测试路由
	route := &Route{
		Method: "GET",
		Path:   "/test",
	}

	// 测试方法匹配
	req, _ := http.NewRequest("GET", "http://example.com/test", nil)
	if !route.Match(req) {
		t.Error("Expected GET method to match")
	}

	// 测试路径匹配
	req, _ = http.NewRequest("GET", "http://example.com/test/123", nil)
	if !route.Match(req) {
		t.Error("Expected path to match with prefix")
	}

	// 测试方法不匹配
	req, _ = http.NewRequest("POST", "http://example.com/test", nil)
	if route.Match(req) {
		t.Error("Expected POST method to not match")
	}

	// 测试路径不匹配
	req, _ = http.NewRequest("GET", "http://example.com/other", nil)
	if route.Match(req) {
		t.Error("Expected different path to not match")
	}
}

func Test_RestMux_HandleFunc(t *testing.T) {
	// 创建RestMux实例
	mux := NewRestMux("/api")

	// 测试GET路由注册
	called := false
	mux.HandleFunc("GET", "/users", func(w http.ResponseWriter, r *http.Request) {
		called = true
	})

	// 测试路由是否正确添加
	if len(mux.routes) != 1 {
		t.Errorf("Expected 1 route, got %d", len(mux.routes))
	}

	// 测试路由匹配
	req, _ := http.NewRequest("GET", "http://example.com/api/users", nil)
	found := false
	for _, route := range mux.routes {
		// 需要更新上下文路径来匹配路由
		ctx := context.WithValue(req.Context(), RequestCtxKey("data"), map[string]interface{}{})
		req = req.WithContext(ctx)

		if route.Match(req) {
			found = true
			// 执行处理函数
			route.ServeHTTP(nil, req)
			break
		}
	}

	if !found {
		t.Error("Expected route to be found")
	}

	if !called {
		t.Error("Expected handler function to be called")
	}
}

func Test_ServerMux_Handle(t *testing.T) {
	// 创建ServerMux实例
	s := &ServerMux{
		handlers: make(map[string]http.Handler),
		paths:    []string{},
	}

	// 创建测试处理程序
	called := false
	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		called = true
	})

	// 测试基本路由注册
	directives := []string{"test_directive"}
	s.Handle("/test", handler, directives)

	// 测试路由是否正确添加
	if len(s.handlers) != 1 {
		t.Errorf("Expected 1 handler, got %d", len(s.handlers))
	}

	// 测试路径排序
	if len(s.paths) != 1 || s.paths[0] != "/test" {
		t.Errorf("Expected paths to contain '/test'")
	}

	// 测试路由匹配
	req, _ := http.NewRequest("GET", "http://example.com/test", nil)
	ctx := context.WithValue(req.Context(), RequestCtxKey("data"), map[string]interface{}{})
	req = req.WithContext(ctx)

	// 调用内部serveHTTP方法进行测试
	// 创建ResponseRecorder来捕获响应
	w := &testResponseWriter{}
	s.serveHTTP(w, req)

	if !called {
		t.Error("Expected handler function to be called")
	}
}

// 自定义ResponseWriter实现用于测试
type testResponseWriter struct {
	statusCode int
	body       []byte
}

func (w *testResponseWriter) Header() http.Header {
	return http.Header{}
}

func (w *testResponseWriter) Write(b []byte) (int, error) {
	w.body = append(w.body, b...)
	return len(b), nil
}

func (w *testResponseWriter) WriteHeader(statusCode int) {
	w.statusCode = statusCode
}

func Test_NewServeMux(t *testing.T) {
	// 创建测试配置
	config := &model.HttpServerConfig{
		Name: "test_server",
		Port: 8080,
		Host: "localhost",
		Directives: []string{
			"Record-Access test_server",
		},
		AllowIPs: []string{"192.168.1.0/24"},
		DenyIPs:  []string{"10.0.0.0/8"},
		Paths: []model.HttpPath{
			{
				Path:    "/",
				Root:    "/var/www/html",
				Default: "index.html",
			},
			{
				Path:    "/test",
				Root:    "/home/kingecg/code/gohttp",
				Default: "index.html",
			},
		},
	}

	// 调用NewServeMux
	s := NewServeMux(config)

	// 验证基本配置
	if s == nil {
		t.Error("Expected ServerMux instance, got nil")
	}

	// // 验证指令处理程序
	// if s.directiveHandlers.Len() == 0 {
	// 	t.Error("Expected directive handlers to be registered")
	// }

	// 验证路径处理程序
	if len(s.handlers) != 2 || !strings.Contains(s.paths[0], "/test") {
		t.Error("Expected handlers to be registered for /test path")
	}

	req, _ := http.NewRequest("GET", "http://localhost/test", nil)
	ctx := context.WithValue(req.Context(), RequestCtxKey("data"), map[string]interface{}{})
	req = req.WithContext(ctx)

	// 调用内部serveHTTP方法进行测试
	// 创建ResponseRecorder来捕获响应
	w := &testResponseWriter{}
	s.serveHTTP(w, req)
	// 验证IP访问控制中间件是否添加
	// ipAccessFound := false
	// for _, m := range s.directiveHandlers. {
	// 	if fmt.Sprintf("%v", m) == "IPAccessControl" {
	// 		ipAccessFound = true
	// 		break
	// 	}
	// }
	// if !ipAccessFound {
	// 	t.Error("Expected IPAccessControl middleware to be added")
	// }
}